Question

我对swift很新，希望对此主题有所帮助。我收到一个错误，说我的数组索引超出范围。错误是在第85行。我知道问题是什么，我只是不知道如何解决它，我只花了几个小时就行85！任何帮助表示赞赏!!

import UIKit

class ViewController: UIViewController,UICollectionViewDataSource,UICollectionViewDelegate {


    var hotels = [Hotels]()
    var hotelArray : [[Hotels]] = [];


    override func viewDidLoad() {
        super.viewDidLoad()

    var hotel1 = Hotels(name: "Four Seasons Thailand", image: UIImage(named: "four1")!, rating: "Five Stars")
    var hotel2 = Hotels(name: "Ritz Carlton Dubai ", image: UIImage(named: "ritz2")!, rating: "Five Stars")
    var hotel3 = Hotels(name: "Four Seasons Miami", image: UIImage(named: "four3")!, rating: "Five Stars")
    var hotel4 = Hotels(name: "Beverly Wilshire", image: UIImage(named: "bev4")!, rating: "Five Stars")
    var hotel5 = Hotels(name: "Ritz Carlton Cancun", image: UIImage(named: "ritz5")!, rating: "Five Stars")
    var hotel6 = Hotels(name: "Westin Diplomat", image: UIImage(named: "w1")!, rating: "Four Stars")
    var hotel7 = Hotels(name: "W New Orleans", image: UIImage(named: "w2")!, rating: "Four Stars")
    var hotel8 = Hotels(name: "W Savannah", image: UIImage(named: "w3")!, rating: "Four Stars")
    var hotel9 = Hotels(name: "W Times Square", image: UIImage(named: "w4")!, rating: "Four Stars")
    var hotel10 = Hotels(name: "W Miami", image: UIImage(named: "w5")!, rating: "Four Stars")

    hotelArray = [ [hotel1, hotel2, hotel3, hotel4, hotel4],[hotel6, hotel7, hotel8, hotel9, hotel10] ]


    }



    func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {

        return hotelArray.count
    }


    func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {


        return hotelArray[section].count

    }

    func collectionView(collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String,

        atIndexPath indexPath: NSIndexPath) -> UICollectionReusableView {
        // assume that it will be either a header or footer first.
        var reuseIdentifier = "headerId";
        // now check to see if it's the type that we didn't assume it would be.
        if kind == UICollectionElementKindSectionFooter {
            // reassign the identifier

        }
        // dequeue the reusable view and give it information
        let header = collectionView.dequeueReusableSupplementaryViewOfKind(kind, withReuseIdentifier: "headerId", forIndexPath: indexPath) as CustomCollReusableCellCollectionReusableView;

        // configure the headerFooter view
        header.headerTitle.text = hotelArray[indexPath.section][0].rating

        header.deleteButton?.tag = indexPath.section;

        // return our view
        return header;
    }





    func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
        //write here
         let cell : CellCollectionCollectionViewCell = collectionView.dequeueReusableCellWithReuseIdentifier("cellReuse", forIndexPath: indexPath) as CellCollectionCollectionViewCell;

       //naming and setting the cells properties here!!
        //cell.myLabel.text = "hello \(indexPath.row) S: \(indexPath.section)";

        cell.myLabel?.text = hotelArray[indexPath.row][0].name;



        // return the cell
        return cell;
    }





}

Answer 1

您正在将该行用作细分。这当然是出界的。

cell.myLabel?.text = hotelArray[indexPath.row][0].name

应该是

cell.myLabel?.text = hotelArray[indexPath.segment][indexPath.row].name

Answer 2

如果我正确地得到了这个，你必须改变这个：

func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {

        return hotelArray.count
    }


func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {


        return hotelArray[section].count

    }

到此：

func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {

        return 1
    }


func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {


        return 10

    }

数组索引超出范围。错误

2 个答案: